diff options
Diffstat (limited to 'src/declarative/scenegraph/adaptationlayers/default/default_glyphnode_p.cpp')
| -rw-r--r-- | src/declarative/scenegraph/adaptationlayers/default/default_glyphnode_p.cpp | 317 |
1 files changed, 0 insertions, 317 deletions
diff --git a/src/declarative/scenegraph/adaptationlayers/default/default_glyphnode_p.cpp b/src/declarative/scenegraph/adaptationlayers/default/default_glyphnode_p.cpp deleted file mode 100644 index 83f6741542..0000000000 --- a/src/declarative/scenegraph/adaptationlayers/default/default_glyphnode_p.cpp +++ /dev/null @@ -1,317 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the QtDeclarative module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** No Commercial Usage -** This file contains pre-release code and may not be distributed. -** You may use this file in accordance with the terms and conditions -** contained in the Technology Preview License Agreement accompanying -** this package. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain additional -** rights. These rights are described in the Nokia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** If you have questions regarding the use of this file, please contact -** Nokia at qt-info@nokia.com. -** -** -** -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "default_glyphnode_p.h" - -#include <qglshaderprogram.h> - -#include <private/qtextureglyphcache_gl_p.h> -#include <private/qfontengine_p.h> -#include <private/qglextensions_p.h> - -#include <qsgtexture_p.h> - -QT_BEGIN_NAMESPACE - -class TextMaskMaterialData : public AbstractMaterialShader -{ -public: - TextMaskMaterialData(); - - virtual void updateState(Renderer *renderer, AbstractMaterial *newEffect, AbstractMaterial *oldEffect, Renderer::Updates updates); - virtual char const *const *attributeNames() const; -private: - virtual void initialize(); - virtual const char *vertexShader() const; - virtual const char *fragmentShader() const; - - int m_matrix_id; - int m_color_id; - int m_textureScale_id; -}; - -const char *TextMaskMaterialData::vertexShader() const { - return - "uniform highp mat4 matrix; \n" - "uniform highp vec2 textureScale; \n" - "attribute highp vec4 vCoord; \n" - "attribute highp vec2 tCoord; \n" - "varying highp vec2 sampleCoord; \n" - "void main() { \n" - " sampleCoord = tCoord * textureScale; \n" - " gl_Position = matrix * vCoord; \n" - "}"; -} - -const char *TextMaskMaterialData::fragmentShader() const { - return - "varying highp vec2 sampleCoord; \n" - "uniform sampler2D texture; \n" - "uniform lowp vec4 color; \n" - "void main() { \n" - " gl_FragColor = color * texture2D(texture, sampleCoord).a; \n" - "}"; -} - -char const *const *TextMaskMaterialData::attributeNames() const -{ - static char const *const attr[] = { "vCoord", "tCoord", 0 }; - return attr; -} - -TextMaskMaterialData::TextMaskMaterialData() -{ -} - -void TextMaskMaterialData::initialize() -{ - m_matrix_id = m_program.uniformLocation("matrix"); - m_color_id = m_program.uniformLocation("color"); - m_textureScale_id = m_program.uniformLocation("textureScale"); -} - -void TextMaskMaterialData::updateState(Renderer *renderer, AbstractMaterial *newEffect, AbstractMaterial *oldEffect, Renderer::Updates updates) -{ - Q_ASSERT(oldEffect == 0 || newEffect->type() == oldEffect->type()); - TextMaskMaterial *material = static_cast<TextMaskMaterial *>(newEffect); - TextMaskMaterial *oldMaterial = static_cast<TextMaskMaterial *>(oldEffect); - - if (oldMaterial == 0 || material->color() != oldMaterial->color() || (updates & Renderer::UpdateOpacity)) { - QVector4D color(material->color().redF(), material->color().greenF(), - material->color().blueF(), material->color().alphaF()); - color *= renderer->renderOpacity(); - m_program.setUniformValue(m_color_id, color); - } - - bool updated = material->ensureUpToDate(); - Q_ASSERT(!material->texture().isNull()); - - Q_ASSERT(oldMaterial == 0 || !oldMaterial->texture().isNull()); - if (updated - || oldMaterial == 0 - || oldMaterial->texture()->textureId() != material->texture()->textureId()) { - m_program.setUniformValue(m_textureScale_id, QVector2D(1.0 / material->cacheTextureWidth(), - 1.0 / material->cacheTextureHeight())); - renderer->setTexture(0, material->texture()); - - // Set the mag/min filters to be linear. We only need to do this when the texture - // has been recreated. - if (updated) { - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); - } - } - - if (updates & Renderer::UpdateMatrices) - m_program.setUniformValue(m_matrix_id, renderer->combinedMatrix()); -} - -TextMaskMaterial::TextMaskMaterial(QFontEngine *fontEngine) - : m_texture(0), m_glyphCache(), m_fontEngine(fontEngine), m_originalFontEngine(fontEngine) -{ - Q_ASSERT(m_fontEngine != 0); - -#if defined(Q_WS_MAC) - // A QFont is always backed by a multi font engine on Mac. SInce QGlyphs contains a - // non-font-merging font at this point, we can assume the multi engine contains a - // single font engine which represents the font needed to display the glyphs. - if (m_originalFontEngine->type() == QFontEngine::Multi) { - m_fontEngine = static_cast<QFontEngineMulti *>(m_originalFontEngine)->engine(0); - } -#endif - - m_originalFontEngine->ref.ref(); - init(); -} - -TextMaskMaterial::~TextMaskMaterial() -{ - Q_ASSERT(m_originalFontEngine != 0); - m_originalFontEngine->ref.deref(); -} - -void TextMaskMaterial::init() -{ - QFontEngineGlyphCache::Type type = QFontEngineGlyphCache::Raster_A8; - setFlag(Blending, true); - - QGLContext *ctx = const_cast<QGLContext *>(QGLContext::currentContext()); - Q_ASSERT(ctx != 0); - - m_glyphCache = m_fontEngine->glyphCache(ctx, type, QTransform()); - if (!m_glyphCache || m_glyphCache->cacheType() != type) { - m_glyphCache = new QGLTextureGlyphCache(ctx, type, QTransform()); - m_fontEngine->setGlyphCache(ctx, m_glyphCache.data()); - } - -#if !defined(QT_OPENGL_ES_2) - bool success = qt_resolve_version_2_0_functions(ctx) - && qt_resolve_buffer_extensions(ctx); - Q_ASSERT(success); - Q_UNUSED(success); -#endif -} - -void TextMaskMaterial::populate(const QPointF &p, - const QVector<quint32> &glyphIndexes, - const QVector<QPointF> &glyphPositions, - QSGGeometry *geometry, - QRectF *boundingRect, - QPointF *baseLine) -{ - QVector<QFixedPoint> fixedPointPositions; - for (int i=0; i<glyphPositions.size(); ++i) - fixedPointPositions.append(QFixedPoint::fromPointF(glyphPositions.at(i))); - - QTextureGlyphCache *cache = glyphCache(); - - cache->populate(m_fontEngine, glyphIndexes.size(), glyphIndexes.constData(), - fixedPointPositions.data()); - cache->fillInPendingGlyphs(); - - int margin = cache->glyphMargin(); - - Q_ASSERT(geometry->indexType() == GL_UNSIGNED_SHORT); - geometry->allocate(glyphIndexes.size() * 4, glyphIndexes.size() * 6); - QVector4D *vp = (QVector4D *)geometry->vertexDataAsTexturedPoint2D(); - Q_ASSERT(geometry->stride() == sizeof(QVector4D)); - ushort *ip = geometry->indexDataAsUShort(); - - QPointF position(p.x(), p.y() - m_fontEngine->ascent().toReal()); - bool supportsSubPixelPositions = m_fontEngine->supportsSubPixelPositions(); - for (int i=0; i<glyphIndexes.size(); ++i) { - QFixed subPixelPosition; - if (supportsSubPixelPositions) - subPixelPosition = cache->subPixelPositionForX(QFixed::fromReal(glyphPositions.at(i).x())); - - QTextureGlyphCache::GlyphAndSubPixelPosition glyph(glyphIndexes.at(i), subPixelPosition); - const QTextureGlyphCache::Coord &c = cache->coords.value(glyph); - - QPointF glyphPosition = glyphPositions.at(i) + position; - int x = qRound(glyphPosition.x()) + c.baseLineX - margin; - int y = qRound(glyphPosition.y()) - c.baseLineY - margin; - - *boundingRect |= QRectF(x + margin, y + margin, c.w, c.h); - - float cx1 = x; - float cx2 = x + c.w; - float cy1 = y; - float cy2 = y + c.h; - - float tx1 = c.x; - float tx2 = (c.x + c.w); - float ty1 = c.y; - float ty2 = (c.y + c.h); - - if (baseLine->isNull()) - *baseLine = glyphPosition; - - vp[4 * i + 0] = QVector4D(cx1, cy1, tx1, ty1); - vp[4 * i + 1] = QVector4D(cx2, cy1, tx2, ty1); - vp[4 * i + 2] = QVector4D(cx1, cy2, tx1, ty2); - vp[4 * i + 3] = QVector4D(cx2, cy2, tx2, ty2); - - int o = i * 4; - ip[6 * i + 0] = o + 0; - ip[6 * i + 1] = o + 2; - ip[6 * i + 2] = o + 3; - ip[6 * i + 3] = o + 3; - ip[6 * i + 4] = o + 1; - ip[6 * i + 5] = o + 0; - } -} - -AbstractMaterialType *TextMaskMaterial::type() const -{ - static AbstractMaterialType type; - return &type; -} - -QGLTextureGlyphCache *TextMaskMaterial::glyphCache() const -{ - return static_cast<QGLTextureGlyphCache*>(m_glyphCache.data()); -} - -AbstractMaterialShader *TextMaskMaterial::createShader() const -{ - return new TextMaskMaterialData; -} - -int TextMaskMaterial::compare(const AbstractMaterial *o) const -{ - Q_ASSERT(o && type() == o->type()); - const TextMaskMaterial *other = static_cast<const TextMaskMaterial *>(o); - if (m_glyphCache != other->m_glyphCache) - return m_glyphCache - other->m_glyphCache; - QRgb c1 = m_color.rgba(); - QRgb c2 = other->m_color.rgba(); - return int(c2 < c1) - int(c1 < c2); -} - -bool TextMaskMaterial::ensureUpToDate() -{ - QSize glyphCacheSize(glyphCache()->width(), glyphCache()->height()); - if (glyphCacheSize != m_size) { - QSGPlainTexture *t = new QSGPlainTexture(); - t->setTextureId(glyphCache()->texture()); - t->setTextureSize(QSize(glyphCache()->width(), glyphCache()->height())); - t->setOwnsTexture(false); - m_texture = QSGTextureRef(t); - - m_size = glyphCacheSize; - - return true; - } else { - return false; - } -} - -int TextMaskMaterial::cacheTextureWidth() const -{ - return glyphCache()->width(); -} - -int TextMaskMaterial::cacheTextureHeight() const -{ - return glyphCache()->height(); -} - -QT_END_NAMESPACE |